[PATCH rfc v2 00/10] mm: convert mm counter to take a folio

[Kefeng Wang]

Make all mm_counter() and mm_counter_file() callers to use a folio,
then convert mm counter functions to take a folio, which saves lots
of compound_head() calls.

Kefeng Wang (10):
  mm: swap: introduce pfn_swap_entry_to_folio()
  s390: pgtable: use a folio in ptep_zap_swap_entry()
  mm: huge_memory: use a folio in __split_huge_pmd_locked()
  mm: huge_memory: use a folio in zap_huge_pmd()
  mm: memory: use a folio in copy_nonpresent_pte()
  mm: memory: use a folio in zap_pte_range()
  mm: memory: use a folio in do_set_pmd()
  mm: memory: use a folio in insert_page_into_pte_locked()
  mm: convert mm_counter() to take a folio
  mm: convert mm_counter_file() to take a folio

 arch/s390/mm/pgtable.c  |  4 +-
 include/linux/mm.h      | 12 +++---
 include/linux/swapops.h | 13 +++++++
 kernel/events/uprobes.c |  2 +-
 mm/huge_memory.c        | 34 +++++++++--------
 mm/khugepaged.c         |  4 +-
 mm/memory.c             | 81 +++++++++++++++++++++++------------------
 mm/rmap.c               | 10 ++---
 mm/userfaultfd.c        |  2 +-
 9 files changed, 94 insertions(+), 68 deletions(-)

-- 
2.27.0